EP4017918B1 - Mélanges de polypropylène et de polyéthylène ayant des propriétés améliorées - Google Patents
Mélanges de polypropylène et de polyéthylène ayant des propriétés améliorées Download PDFInfo
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- EP4017918B1 EP4017918B1 EP20753318.3A EP20753318A EP4017918B1 EP 4017918 B1 EP4017918 B1 EP 4017918B1 EP 20753318 A EP20753318 A EP 20753318A EP 4017918 B1 EP4017918 B1 EP 4017918B1
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- 239000000203 mixture Substances 0.000 title claims description 142
- -1 Polypropylene Polymers 0.000 title claims description 86
- 229920001155 polypropylene Polymers 0.000 title claims description 46
- 239000004743 Polypropylene Substances 0.000 title claims description 45
- 239000004698 Polyethylene Substances 0.000 title claims description 37
- 229920000573 polyethylene Polymers 0.000 title claims description 37
- 229920000642 polymer Polymers 0.000 claims description 111
- XMGQYMWWDOXHJM-UHFFFAOYSA-N limonene Chemical compound CC(=C)C1CCC(C)=CC1 XMGQYMWWDOXHJM-UHFFFAOYSA-N 0.000 claims description 46
- 239000000463 material Substances 0.000 claims description 43
- 238000000034 method Methods 0.000 claims description 35
- 229920005629 polypropylene homopolymer Polymers 0.000 claims description 31
- 229920002959 polymer blend Polymers 0.000 claims description 29
- 229940087305 limonene Drugs 0.000 claims description 23
- 235000001510 limonene Nutrition 0.000 claims description 23
- 239000000155 melt Substances 0.000 claims description 22
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 21
- 239000008096 xylene Substances 0.000 claims description 21
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 claims description 19
- 238000002470 solid-phase micro-extraction Methods 0.000 claims description 19
- 238000002156 mixing Methods 0.000 claims description 17
- 229920003023 plastic Polymers 0.000 claims description 17
- 239000004033 plastic Substances 0.000 claims description 17
- 239000000654 additive Substances 0.000 claims description 16
- 238000002844 melting Methods 0.000 claims description 14
- 230000008018 melting Effects 0.000 claims description 14
- 239000004793 Polystyrene Substances 0.000 claims description 13
- 229920002223 polystyrene Polymers 0.000 claims description 11
- 239000002699 waste material Substances 0.000 claims description 11
- 229920002292 Nylon 6 Polymers 0.000 claims description 10
- 239000003963 antioxidant agent Substances 0.000 claims description 10
- 239000000123 paper Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000000454 talc Substances 0.000 claims description 7
- 229910052623 talc Inorganic materials 0.000 claims description 7
- 239000002023 wood Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 6
- 239000000194 fatty acid Substances 0.000 claims description 6
- 229930195729 fatty acid Natural products 0.000 claims description 6
- 150000004665 fatty acids Chemical class 0.000 claims description 6
- 239000002667 nucleating agent Substances 0.000 claims description 6
- 238000004806 packaging method and process Methods 0.000 claims description 6
- 230000000996 additive effect Effects 0.000 claims description 5
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- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000005453 pelletization Methods 0.000 claims description 4
- 239000003381 stabilizer Substances 0.000 claims description 4
- 239000000969 carrier Substances 0.000 claims description 3
- 239000000049 pigment Substances 0.000 claims description 3
- 239000012748 slip agent Substances 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 19
- 229920000098 polyolefin Polymers 0.000 description 16
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 12
- 239000005977 Ethylene Substances 0.000 description 12
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 12
- 229920001577 copolymer Polymers 0.000 description 11
- 239000003054 catalyst Substances 0.000 description 10
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 9
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 9
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 9
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 8
- 229920001903 high density polyethylene Polymers 0.000 description 7
- 239000004700 high-density polyethylene Substances 0.000 description 7
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 7
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- 238000002411 thermogravimetry Methods 0.000 description 7
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- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 6
- 238000009826 distribution Methods 0.000 description 6
- 238000004064 recycling Methods 0.000 description 6
- YIWUKEYIRIRTPP-UHFFFAOYSA-N 2-ethylhexan-1-ol Chemical compound CCCCC(CC)CO YIWUKEYIRIRTPP-UHFFFAOYSA-N 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 5
- IDZYHGDLWGVHQM-UHFFFAOYSA-N aluminum;calcium;sodium;silicate Chemical compound [Na+].[Al+3].[Ca+2].[O-][Si]([O-])([O-])[O-] IDZYHGDLWGVHQM-UHFFFAOYSA-N 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
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- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 4
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical class [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000003426 co-catalyst Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000000113 differential scanning calorimetry Methods 0.000 description 4
- LDLDYFCCDKENPD-UHFFFAOYSA-N ethenylcyclohexane Chemical compound C=CC1CCCCC1 LDLDYFCCDKENPD-UHFFFAOYSA-N 0.000 description 4
- 229920001684 low density polyethylene Polymers 0.000 description 4
- 239000004702 low-density polyethylene Substances 0.000 description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
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- 150000003609 titanium compounds Chemical class 0.000 description 4
- YWEWWNPYDDHZDI-JJKKTNRVSA-N (1r)-1-[(4r,4ar,8as)-2,6-bis(3,4-dimethylphenyl)-4,4a,8,8a-tetrahydro-[1,3]dioxino[5,4-d][1,3]dioxin-4-yl]ethane-1,2-diol Chemical compound C1=C(C)C(C)=CC=C1C1O[C@H]2[C@@H]([C@H](O)CO)OC(C=3C=C(C)C(C)=CC=3)O[C@H]2CO1 YWEWWNPYDDHZDI-JJKKTNRVSA-N 0.000 description 3
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 description 3
- 239000005995 Aluminium silicate Substances 0.000 description 3
- 238000005481 NMR spectroscopy Methods 0.000 description 3
- 235000012211 aluminium silicate Nutrition 0.000 description 3
- 230000001458 anti-acid effect Effects 0.000 description 3
- XITRBUPOXXBIJN-UHFFFAOYSA-N bis(2,2,6,6-tetramethylpiperidin-4-yl) decanedioate Chemical compound C1C(C)(C)NC(C)(C)CC1OC(=O)CCCCCCCCC(=O)OC1CC(C)(C)NC(C)(C)C1 XITRBUPOXXBIJN-UHFFFAOYSA-N 0.000 description 3
- PPAJKSBNLWWSIM-VKAVYKQESA-N bis(2-ethylhexyl) (z)-2-methylbut-2-enedioate Chemical compound CCCCC(CC)COC(=O)\C=C(\C)C(=O)OCC(CC)CCCC PPAJKSBNLWWSIM-VKAVYKQESA-N 0.000 description 3
- 238000011088 calibration curve Methods 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
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- 239000007924 injection Substances 0.000 description 3
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- 239000011777 magnesium Substances 0.000 description 3
- YHNWUQFTJNJVNU-UHFFFAOYSA-N magnesium;butane;ethane Chemical compound [Mg+2].[CH2-]C.CCC[CH2-] YHNWUQFTJNJVNU-UHFFFAOYSA-N 0.000 description 3
- QUAMTGJKVDWJEQ-UHFFFAOYSA-N octabenzone Chemical compound OC1=CC(OCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 QUAMTGJKVDWJEQ-UHFFFAOYSA-N 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
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- 238000000926 separation method Methods 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229920002554 vinyl polymer Polymers 0.000 description 3
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical class [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 3
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 2
- DMWVYCCGCQPJEA-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane Chemical compound CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C DMWVYCCGCQPJEA-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 206010011906 Death Diseases 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000004594 Masterbatch (MB) Substances 0.000 description 2
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 description 2
- 239000011954 Ziegler–Natta catalyst Substances 0.000 description 2
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
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- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 2
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- NNBZCPXTIHJBJL-UHFFFAOYSA-N decalin Chemical compound C1CCCC2CCCCC21 NNBZCPXTIHJBJL-UHFFFAOYSA-N 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
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- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 description 2
- YNLAOSYQHBDIKW-UHFFFAOYSA-M diethylaluminium chloride Chemical compound CC[Al](Cl)CC YNLAOSYQHBDIKW-UHFFFAOYSA-M 0.000 description 2
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 2
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- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
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- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 2
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- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 description 2
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- QPFMBZIOSGYJDE-QDNHWIQGSA-N 1,1,2,2-tetrachlorethane-d2 Chemical compound [2H]C(Cl)(Cl)C([2H])(Cl)Cl QPFMBZIOSGYJDE-QDNHWIQGSA-N 0.000 description 1
- PRBHEGAFLDMLAL-UHFFFAOYSA-N 1,5-Hexadiene Natural products CC=CCC=C PRBHEGAFLDMLAL-UHFFFAOYSA-N 0.000 description 1
- 238000004009 13C{1H}-NMR spectroscopy Methods 0.000 description 1
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- OSIOKOOENDLTOL-UHFFFAOYSA-N 2-ethylidenebicyclo[2.2.1]hept-3-ene Chemical compound C1CC2C(=CC)C=C1C2 OSIOKOOENDLTOL-UHFFFAOYSA-N 0.000 description 1
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- 239000003599 detergent Substances 0.000 description 1
- JWCYDYZLEAQGJJ-UHFFFAOYSA-N dicyclopentyl(dimethoxy)silane Chemical compound C1CCCC1[Si](OC)(OC)C1CCCC1 JWCYDYZLEAQGJJ-UHFFFAOYSA-N 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
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- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical class O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- PWWSSIYVTQUJQQ-UHFFFAOYSA-N distearyl thiodipropionate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCCCCCCCC PWWSSIYVTQUJQQ-UHFFFAOYSA-N 0.000 description 1
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- 150000002688 maleic acid derivatives Chemical class 0.000 description 1
- 150000002690 malonic acid derivatives Chemical class 0.000 description 1
- 238000000386 microscopy Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-N o-dicarboxybenzene Natural products OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000002453 shampoo Substances 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 235000010234 sodium benzoate Nutrition 0.000 description 1
- 239000004299 sodium benzoate Substances 0.000 description 1
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical class [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 150000003890 succinate salts Chemical class 0.000 description 1
- 238000002076 thermal analysis method Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- PXXNTAGJWPJAGM-UHFFFAOYSA-N vertaline Natural products C1C2C=3C=C(OC)C(OC)=CC=3OC(C=C3)=CC=C3CCC(=O)OC1CC1N2CCCC1 PXXNTAGJWPJAGM-UHFFFAOYSA-N 0.000 description 1
- 238000001969 wideband alternating-phase low-power technique for zero residual splitting Methods 0.000 description 1
- 238000004876 x-ray fluorescence Methods 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
- RNWHGQJWIACOKP-UHFFFAOYSA-N zinc;oxygen(2-) Chemical class [O-2].[Zn+2] RNWHGQJWIACOKP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/06—Polystyrene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Definitions
- the present invention relates to a polymer composition
- a polymer composition comprising as component A) a recycled polymer blend comprising polypropylene and polyethylene and as component B) a virgin polypropylene homopolymer, a process for manufacturing said polymer composition and to the use of a virgin polypropylene homopolymer B) for increasing mechanical properties of component A).
- Polyolefins in particular polyethylene and polypropylene are increasingly consumed in large amounts in a wide range of applications, including packaging for food and other goods, fibres, automotive components, and a great variety of manufactured articles.
- the reason for this is not only a favourable price/performance ratio, but also the high versatility of these materials and a very broad range of possible modifications, which allows tailoring of end-use properties in a wide range of applications.
- Chemical modifications, copolymerisation, blending, drawing, thermal treatment and a combination of these techniques can convert common-grade polyolefins into valuable products with desirable properties. This has led to huge amounts of polyolefin materials being produced for consumer applications.
- polyolefin recyclate is always contaminated with the other type of polyolefin being either polyethylene or polypropylene.
- cross contamination with non-PO materials such as polyethylene terephthalate, polyamide, polystyrene or non-polymeric substances like wood, paper, glass or aluminium is possible.
- EP 1 963 067 A1 refers to polyolefin compositions comprising, by weight: A) 30 to 80 % of a polyolefin component containing not less than 80% of a waste material selected from polyethylene, polypropylene or their mixtures; B) 20 to 70% of a heterophasic polyolefin composition having flexural modulus equal to or lower than 600 MPa.
- EP 1 495 074 A1 relates to techniques for creating recycled plastic materials from waste plastic materials.
- a recycled plastic material contains at least a primary polymer, a secondary polymer, and residual additives.
- WO 2013/0252822 A1 refers to a process for creating polyolefin blends from waste streams with controlled rheological properties. Said process can include processing a waste stream to make a mixture comprising a mixture comprising polypropylene and polyethylene and compounding the mixture with one or more peroxides or nitroxides to produce a polyolefin blend.
- WO 2015/169690 A1 relates to polypropylene-polyethylene blends comprising A) 75 to 90 wt.-% of a blend of A-1) polypropylene and A-2) polyethylene and B) 10 to 25 wt.-% of a compatibilizer being a heterophasic polyolefin composition comprising B-1) a polypropylene with an MFR 2 between 1.0 and 300 g/10 min (according to ISO 1133 at 230°C at a load of 2.16 kg) and B-2) a copolymer of ethylene and propylene or C4 to C10 alpha olefin with a Tg (measured with dynamic-mechanical thermal analysis, DMTA, according to ISO 6721-7) of below -25°C and an intrinsic viscosity (measured in decalin according to DIN ISO 1628/1 at 135°C) of at least 3.0 dl/g, whereby the blend has simultaneously increased Charpy Notched Impact Strength (according to ISO 179-leA,
- WO 2014/167493 relates to a polyolefin mixture from recycled and virgin plastic materials, to the process for obtaining it, and to the products manufactured therefrom.
- the process for the preparation of the polyolefin mixture comprises the step a) of mixing together a base polymeric mixture MB and a polymeric mixture MPR, wherein said mixture MPR is obtained from the recycling of post-consumer plastic materials.
- the known polymer compositions comprising recycled materials are not suited for a high-end market and inter alia due to their mechanical properties they are not able to compete with virgin materials.
- the available recyclates are facing problems in composition, for example fluctuation in PP and PE content, in consistency (in terms of flow properties), in their property profile (poor stiffness-impact balance), and in cross-contamination (such as non-polyolefinic components, inorganic materials such as aluminium or paper) but also in colour and odour.
- the polymer compositions comprising recycled materials known from the prior art comprise as virgin polymers mainly heterophasic impact copolymers or random copolymers. These polymers comprise an EPR-phase.
- the long-term stabilisation of the materials known from the prior art is not so good that the materials could be subjected to further re-processing or recycling processes.
- Claim 8 of the present invention relates to a process for manufacturing a polymer composition according to any one of claims 1 to 7, comprising the following steps:
- Claims 9 and 10 specify preferred embodiments of the process according to the present invention.
- Claim 11 relates to the use of a virgin polypropylene homopolymer; whereby said virgin polypropylene homopolymer has
- claim 14 refers to an article comprising the polymer composition according to the present invention and claim 15 relates to preferred embodiments of said article.
- the polymer compositions in accordance with the present invention comprise the components A) and B) and optionally additives.
- the fixed ranges of the indications of quantity for the individual components A) and B) and optionally the additives are to be understood such that an arbitrary quantity for each of the individual components can be selected within the specified ranges provided that the strict provision is satisfied that the sum of all the components A), B) and optionally the additives add up to 100 wt.-%.
- post-consumer waste refers to objects having completed at least a first use cycle (or life cycle), i.e. having already served their first purpose and been through the hands of a consumer; while industrial waste refers to the manufacturing scrap which does normally not reach a consumer.
- recycled polymers may also comprise up to 17 wt.-%, preferably up to 3 wt.-%, more preferably up to 1 wt.-% and even more preferably up to 0.1 wt.-% based on the overall weight of the recycled polymer of other components originating from the first use. Type and amount of these components influence the physical properties of the recycled polymer. The physical properties given below refer to the main component of the recycled polymer.
- thermoplastic polymers like polystyrene and PA 6, talc, chalk, ink, wood, paper, limonene and fatty acids.
- PS polystyrene
- PA 6 polyamide 6
- TGA Thermogravimetric Analysis
- the term "virgin” denotes the newly produced materials and/or objects prior to first use and not being recycled. In case that the origin of the polymer is not explicitly mentioned the polymer is a "virgin" polymer.
- the polymer composition in accordance with the present invention comprises as component A) 20 to 75 wt.-% based on the overall weight of the polymer composition of a polymer blend, comprising a1) polypropylene; a2) polyethylene; wherein the weight ratio of a1) to a2) is from 3:7 to 12:1; and wherein the polymer blend A) is a recycled material comprising from 0.1 to 100 ppm of limonene, based on the overall weight of component A).
- the weight ratio of a1) to a2) is from 1:1 to 12:1, preferably from 2:1 to 11:1, still more preferably from 6:1 to 11:1, such as 8:1 to 11:1 still further preferably from 7:1 to 10:1, and most preferably from 8:1 to 9.5:1.
- component A) comprises 80.0 to 99.9 wt.-%, preferably 90.0 to 99.0 wt.-% and more preferably 94.0 to 98.0 wt.-% based on the overall weight of component A) of polypropylene a1) and polyethylene a2).
- component A) comprises less than 5 wt.-%, preferably less than 3 wt.-% and more preferably from 0.01 to 2 wt.-% based on the overall weight of component A) of thermoplastic polymers different from a1) and a2), more preferably less than 4.0 wt.-% PA 6 and less than 5 wt.-% polystyrene, still more preferably component A) comprises 0.5 to 3 wt.-% polystyrene.
- component A) comprises less than 5 wt.-%, preferably 4 wt.-% or less and more preferably from 0.01 to 4 wt.-%, based on the overall weight of component A), of talc.
- component A) comprises less than 4 wt.-%, preferably less than 3 wt.-% and more preferably from 0.01 to 2 wt.-% based on the overall weight of component A) of chalk.
- component A) comprises less than 1 wt.-%, preferably less than 0.5 wt.-% and more preferably from 0.01 to 1 wt.-% based on the overall weight of component A) of paper.
- component A) comprises less than 1 wt.-%, preferably less than 0.5 wt.-% and more preferably from 0.01 to 1 wt.-% based on the overall weight of component A) of wood.
- component A) comprises less than 1 wt.-%, preferably less than 0.5 wt.-% and more preferably from 0.01 to 1 wt.-% based on the overall weight of component A) of metal.
- component A) comprises 0.1 to 100 ppm of limonene, based on the overall weight of component A), as determined using solid phase microextraction (HS-SPME-GC-MS).
- blend (A) has a content of limonene as determined by using solid phase microextraction (HS-SPME-GC-MS) of from 1 ppm to 100 ppm, preferably from 1 ppm to 50 ppm, more preferably from 2 ppm to 50 ppm, most preferably from 3 ppm to 35 ppm.
- blend (A) has a content of limonene as determined by using solid phase microextraction (HS-SPME-GC-MS) of from 0.10 ppm to less than 1 ppm, preferably 0.10 to 0.85 ppm, most preferably 0.10 to 0.60 ppm.
- solid phase microextraction HS-SPME-GC-MS
- Blend (A) contains limonene, when blend (A) contains material that originates from such types of domestic waste streams.
- blend (A) has a content of limonene as determined by using solid phase microextraction (HS-SPME-GC-MS) of from 0.10 ppm to less than 1 ppm, preferably 0.10 to 0.85 ppm, most preferably 0.10 to 0.60 ppm.
- Blend (A) according to this second preferred embodiment can be prepared by subjecting blend (A) according to the above first preferred embodiment to washing and/or aeration.
- Washing can be effected by industrial washers such as provided by Herbold Meckesheim GmbH. Depending on the origin of the waste stream, several washing cycles may be necessary.
- Various aeration processes such as described in US 5,767,230 are also known in the art. US 5,767,230 is incorporated by reference herewith. The process as described in US 5,767,230 is preferably combined with a washing stage as described above.
- component A) comprises 200 ppm or less, preferably from 1 to 200 ppm, based on the overall weight of component A), of fatty acids. In another embodiment, component A) comprises less than 200 ppm of fatty acids, based on the overall weight of component A).
- component A) is a recycled material, which is recovered from waste plastic material derived from post-consumer and/or post-industrial waste.
- the MFR 2 (230°C, 2.16 kg) determined according to ISO 1133 of component A) is in the range of 16 to 50 g/10 min and preferably in the range of 18 to 22 g/10 min.
- the Charpy Notched Impact Strength measured according to ISO 179-1eA at 23°C of component A) is more than 3.0 kJ/m 2 , preferably in the range from 4.0 to 7.0 kJ/m 2 and more preferably in the range from 5.0 to 6.0 kJ/m 2 .
- a further preferred embodiment of the present invention stipulates that the Tensile Modulus measured according to ISO527-2 of component A) is in the range of 800 to 1500 MPa and preferably in the range of 1100 to 1400 MPa.
- the content of component A) in the polymer composition is in the range of 45 to 55 wt.-%, preferably in the range of 48 to 52 wt.-% and more preferably is 50 wt.-% based on the overall weight of the polymer composition.
- the content of polypropylene a1) in component A) is in the range from 75 to 95 wt.-% and preferably in the range from 83 to 93 wt.-% based on the overall weight of component A).
- the content of polypropylene a1) in component A) may be determined by FTIR spectroscopy as described in the experimental section. More preferably component a1) comprises more than 95 wt.-%, preferably from 96 to 99.9 wt.-% isotactic polypropylene and most preferably consists of isotactic polypropylene.
- the content of polyethylene a2) in component A) is in the range from 5 to 25 wt.-% and preferably in the range from 7 to 17 wt.-% based on the overall weight of component A).
- the content of polyethylene a2) in component A) may be determined by FTIR spectroscopy as described in the experimental section. More, preferably component a2) consists of homopolyethylene and ethylene containing copolymers.
- the ratio of polypropylene a1) to polyethylene a2) is from 1:1 to 12:1, preferably from 2:1 to 11:1, still more preferably from 6:1 to 11:1, such as 8:1 to 11:1, still further preferably from 7:1 to 10:1, and most preferably from 8:1 to 9.5:1.
- melt enthalpy of component a2) / melt enthalpy of a1) in the polymer composition is in the range of 0.2 to 2.0 and preferably in the range of 0.25 to 1.75.
- polypropylene a1) comprises one or more polymer materials selected from the following:
- a further preferred embodiment of the present invention stipulates that component a1) has a density in the range of 0.895 to 0.920 g/cm 3 , preferably in the range of 0.900 to 0.915 g/cm 3 as determined in accordance with ISO 1183.
- melt flow rate (MFR) of component a1) is in the range of 0.5 to 300 g/10min, preferably in the range of 1.0 to 150 g/lOmin and alternatively in the range of 1.5 to 50 g/lOmin as determined in accordance with ISO 1133 (at 230°C; 2.16kg load).
- the melting temperature of component a1) is within the range of 130 to 170°C, preferably in the range of 140 to 168°C and more preferably in the range of 142 to 166°C.
- it is a propylene homopolymer like item (I) above it will have a melting temperature in the range of 150 to 170°C, preferably in the range from 155 to 168°C and more preferably in the range of 160 to 166°C as determined by differential scanning calorimetry (DSC) according to ISO 11357-3.
- the polyethylene a2) is preferably a high density polyethylene (HDPE) or a linear low density polyethylene (LLDPE) or a long-chain branched low density polyethylene (LDPE).
- the comonomer content of component a2) is usually below 50 wt.-% preferably below 25 wt.-% and most preferably below 15 wt.-%.
- the HDPE is an ethylene homopolymer.
- a HDPE suitable for use as component a2) in this disclosure generally has a MFR determined by ISO 1133 (at 190°C; 2.16kg load), in the range of 0.01 g/lOmin to 50 g/lOmin, preferably in the range of 0.1 to 30 g/lOmin, like in the range of 0.5 to 20 g/lOmin.
- the HDPE may also be a copolymer, for example a copolymer of ethylene with one or more alpha-olefin monomers such as propylene, butene, hexene, etc.
- a LLDPE suitable for use as component a2) in this disclosure generally has a density as determined with ISO 1183, in the range of 0.900 to 0.920 g/cm 3 , or in the range of 0.905 to 0.918 g/cm 3 , or in the range of 0.910 to 0.918 g/cm 3 and an MFR determined by ISO 1133 (at 190°C; 2.16 kg load), in the range of 0.01 to 50 g/min, or in the range of 0.1 to 30 g/lOmin, like in the range of 0.5 to 20 g/10min.
- the LLDPE is a copolymer, for example a copolymer of ethylene with one or more alpha-olefin monomers such as propylene, butene, hexene, etc.
- a LDPE suitable for use as component a2) in this disclosure generally has a density as determined with ISO 1183, in the range of 0.915 to 0.935 g/cm 3 , and an MFR determined by ISO 1133 (190°C; 2.16kg), in the range of 0.01 to 20 g/min.
- the LDPE is an ethylene homopolymer.
- the melting temperature of component a2) is in the range from 100 to 135°C and preferably in the range from 105 to 132°C.
- Such post-consumer and/or post-industrial waste can be derived from inter alia waste electrical and electronic equipment (WEEE) or end-of-life vehicles (ELV) or from differentiated waste collection schemes like the German DSD system, the Austrian ARA system and the Austrian ASZ system (especially for Purpolen materials) or the Italian “Raccolta Differenziata” system.
- WEEE waste electrical and electronic equipment
- EUV end-of-life vehicles
- differentiated waste collection schemes like the German DSD system, the Austrian ARA system and the Austrian ASZ system (especially for Purpolen materials) or the Italian “Raccolta Differenziata” system.
- Recycled materials are commercially available, e.g. from Corpela (Italian Consortium for the collection, recovery, recycling of packaging plastic wastes), Resource Plastics Corp. (Brampton, ON), Kruschitz GmbH, Plastics and Recycling (AT), Ecoplast (AT), Vogt Hor GmbH (DE), mtm plastics GmbH (DE) etc.
- a preferred recycled polymer blend is Purpolen PP, being a recycled polymer mixture comprising polyethylene and polypropylene obtained from mtm plastics GmbH, Niedergebra, Germany.
- component B) has a xylene soluble content (XCS) determined according to ISO 16152, 1ed, 25°C, based on the overall weight of component B) in the range of 0.5 to 4.0 wt.-%, preferably in the range of 1.0 to 3.0 wt.-% and more preferably in the range of 2.0 to 2.5 wt.-%.
- XCS xylene soluble content
- a further preferred embodiment of the present invention stipulates that the MFR 2 (230°C, 2.16 kg) determined according to ISO 1133 of component B) is in the range of 15 to 35 g/10 min and preferably in the range of 22 to 28 g/10 min.
- component B) has a C2-content in the range of 0 to 2.0 wt.-% and preferably of 0.1 to 1.0 wt.-%, more preferably below 0.6 wt.-% based on the overall weight of component B).
- component B) has a C3-content > 95 wt.-%. More preferably component B) comprises no other units than units derived from ethylene and propene. Still more preferably the C3-content in component B) is the range of 95.0 to 99.9 wt.-%, preferably in the range of 97.0 to 99.8 wt.-% and more preferably in the range of 99.4 to 99.7 wt.-%. According to still a further embodiment component B) comprises at least one propylene-copolymer-rubber phase, wherein the copolymer is ethylene or a C 4 -C 10 alpha-olefin.
- component B) has a Tensile Modulus measured according to ISO527-2 in the range of 1000 to 2000 MPa, preferably in the range of 1500 to 1950 MPa and more preferably in the range of 1700 to 1900 MPa.
- component B has a melt peak temperature measured according to ISO 11357 in the range of 160 to 168°C and preferably in the range of 164 to 166°C.
- a further preferred embodiment of the present invention stipulates that component B) has a Charpy Notched Impact Strength measured according to ISO 179-1eA at 23°C in the range of 1.5 to 7.0 kJ/m 2 , preferably in the range of 2.0 to 5.0 kJ/m 2 and more preferably in the range of 2.5 to 4.0 kJ/m 2 .
- the content of component B) in the polymer composition is in the range from 60 to 80 wt.-% and preferably in the range from 70 to 78 wt.-% or in the range from 45 to 55 wt.-% based on the overall weight of the polymer composition.
- component B) comprises a polymeric nucleating agent.
- Said nucleating agent may be added by any suitable process, including in particular blending processes such as mechanical blending including mixing and melt blending processes and any combinations thereof as well as in-situ blending during the polymerisation process of component B).
- Suitable conditions for manufacturing component B) are inter alia described in WO 2015/197434 A1 .
- component B) is polymerised in presence of a Ziegler-Natta catalyst (ZN-C) comprising compounds (TC) of a transition metal of Group 4 to 6 of IUPAC, a Group 2 metal compound (MC) and an internal donor (ID), wherein said internal donor (ID) is a non-phthalic compound, preferably is a non-phthalic acid ester b) a co-catalyst (Co), and c) optionally an external donor (ED).
- ZN-C Ziegler-Natta catalyst
- TC transition metal of Group 4 to 6 of IUPAC
- MC Group 2 metal compound
- ID internal donor
- ID internal donor
- ED optionally an external donor
- the internal donor (ID) is selected from optionally substituted malonates, maleates, succinates, glutarates, cyclohexene-1,2-dicarboxylates, benzoates and derivatives and/or mixtures thereof, preferably the internal donor (ID) is a citraconate; b) the molar-ratio of co-catalyst (Co) to external donor (ED) [Co/ED] is 5 to 45.
- Component B) may be produced in a sequential polymerisation process comprising at least two reactors (R1) and (R2), in the first reactor (R1) a first propylene homopolymer fraction (H-PP1) is produced and subsequently transferred into the second reactor (R2), in the second reactor (R2) a second propylene homopolymer fraction (H-PP2) is produced in the presence of the first propylene homopolymer fraction (H-PP1).
- the polymer composition according to the present invention may also comprise additives.
- the polymer composition comprises at least one additive, preferably selected from the group consisting of slip agents, antiblocking agents, UV-stabilisers, pigments, antioxidants, anti-acids, additive carriers, nucleating agents and mixtures thereof, whereby these additives preferably are present in 0 to 5 wt.-% and more preferably in 0.1 to 4 wt.-% based on the overall weight of the polymer composition.
- additives preferably selected from the group consisting of slip agents, antiblocking agents, UV-stabilisers, pigments, antioxidants, anti-acids, additive carriers, nucleating agents and mixtures thereof, whereby these additives preferably are present in 0 to 5 wt.-% and more preferably in 0.1 to 4 wt.-% based on the overall weight of the polymer composition.
- antioxidants examples include sterically hindered phenols (such as CAS No. 6683-19-8, also sold as Irganox 1010 FF TM by BASF), phosphorous based antioxidants (such as CAS No. 31570-04-4, also sold as Hostanox PAR 24 (FF) TM by Clariant, or Irgafos 168 (FF)TM by BASF), sulphur based antioxidants (such as CAS No. 693- 36-7 , sold as Irganox PS-802 FL TM by BASF), nitrogen-based antioxidants (such as 4,4'- bis(1,1'-dimethylbenzyl)diphenylamine), or antioxidant blends.
- sterically hindered phenols such as CAS No. 6683-19-8, also sold as Irganox 1010 FF TM by BASF
- phosphorous based antioxidants such as CAS No. 31570-04-4, also sold as Hostanox PAR 24 (FF) TM by Clariant, or I
- anti-acids which may be used in the polymer compositions according to the present invention are calcium stearates, sodium stearates, zinc stearates, magnesium and zinc oxides, synthetic hydrotalcite (e.g. SHT, CAS-No. 11097-59-9 ), lactates and lactylates, as well as calcium stearate ( CAS No. 1592-23-0 ) and zinc stearate ( CAS No. 557-05-1 ).
- synthetic hydrotalcite e.g. SHT, CAS-No. 11097-59-9
- lactates and lactylates as well as calcium stearate ( CAS No. 1592-23-0 ) and zinc stearate ( CAS No. 557-05-1 ).
- Antiblocking agents that may be used in the polymer compositions according to the present invention are natural silica such as diatomaceous earth (such as CAS No. 60676-86-0 (SuperfFloss TM ), CAS-No. 60676-86-0 (SuperFloss E TM ), or CAS-No. 60676-86-0 (Celite 499 TM )), synthetic silica (such as CAS-No. 7631-86-9 , CAS-No. 7631-86-9 , CAS-No. 7631-86-9 , CAS-No. 7631-86-9 , CAS-No. 7631-86-9 , CAS-No. 7631-86-9 , CAS-No. 7631-86-9 , CAS-No. 7631-86-9 , CAS-No. 7631-86-9 , CAS-No. 7631-86-9 , CAS-No. 7631-86-9 , CAS-No. 7631-
- silicates such as aluminium silicate (Kaolin) CAS-no. 1318-74-7 , sodium aluminum silicate CAS-No. 1344-00-9 , calcined kaolin CAS-No. 92704-41-1 , aluminum silicate CAS-No. 1327-36-2 , or calcium silicate CAS-No. 1344-95-2 ), synthetic zeolites (such as sodium calcium aluminosilicate hydrate CAS-No. 1344-01-0 , CAS-No. 1344-01-0 , or sodium calcium aluminosilicate, hydrate CAS-No. 1344-01-0 ).
- UV-stabilisers which might be used in the polymer compositions according to the present invention are, for example, Bis-(2,2,6,6-tetramethyl-4-piperidyl)-sebacate ( CAS -No. 52829-07-9 , Tinuvin 770); 2-hydroxy-4-(octyloxy)benzophenone ( CAS-No. 1843-05-6 , Chimassorb 81).
- Nucleating agents that can be used in the polymer compositions according to the present invention are for example sodium benzoate (CAS No. 532-32-1 ) or 1,3:2,4-bis(3,4-dimethylbenzylidene)sorbitol ( CAS 135861-56-2 , Millad 3988).
- Suitable antistatic agents are, for example, glycerol esters ( CAS No. 97593-29-8 ) or ethoxylated amines ( CAS No. 71786-60-2 or 61791-31-9 ) or ethoxylated amides ( CAS No. 204-393-1 ).
- the polymer composition has a MFR 2 (230°C, 2.16 kg) determined according to ISO 1133 in the range of 1 to 50 g/10 min, preferably in the range of 1.5 to 35 g/10 min, more preferably in the range of 15 to 30 g/10 min and most preferably in the range of 16 to 22 g/10 min.
- the polymer composition has a Tensile Modulus measured according to ISO527-2 in the range of 1000 to 1800 MPa and preferably in the range of 1400 to 1750 MPa.
- Still another preferred embodiment of the present invention stipulates that the polymer composition has a Charpy Notched Impact Strength measured according to ISO 179-1eA at 23°C of more than 2.0 kJ/m 2 , preferably in the range of 2.5 to 15.0 kJ/m 2 and more preferably in the range of 2.5 to 5.0 kJ/m 2 .
- the polymer composition has a higher Tensile Modulus measured according to ISO527-2, preferably at least 5 % higher, more preferably from 5 to 35 % higher than the same polymer composition without component B).
- the content of component A) in the polymer composition is in the range of 20 to 40 wt.-%, preferably in the range from 22 to 30 wt.-% or in the range from 45 to 55 wt.-% based on the overall weight of the polymer composition.
- the content of component B) in the polymer composition is in the range of 60 to 80 wt.-%, preferably in the range from 70 to 78 or in the range from 45 to 55 wt.-% based on the overall weight of the polymer composition.
- a preferred polymer composition according to the present invention comprises at least the following components
- Another preferred polymer composition according to the present invention consists of the following components
- the process for manufacturing a polymer composition according to the present invention comprises the following steps:
- component B) has a xylene soluble content (XCS) determined according to ISO 16152, 1ed, 25°C, based on the overall weight of component B) in the range of 0.5 to 4.0 wt.-%, preferably in the range of 1.0 to 3.0 wt.-% and more preferably in the range of 2.0 to 2.5 wt.-%.
- XCS xylene soluble content
- component B) has a MFR 2 (230°C, 2.16 kg) determined according to ISO 1133 in the range of 15 to 35 g/10 min and preferably in the range of 22 to 28 g/10 min.
- component B) has a C2-content in the range of 0 to 2.0 wt.-% and preferably of 0 to 1.0 wt.-%.
- component B) has a tensile modulus measured according to ISO527-2 in the range of 1000 to 2000 MPa, preferably in the range of 1500 to 1950 MPa and more preferably in the range of 1700 to 1900 MPa.
- component B) has a melt peak temperature measured according to ISO 11357 in the range of 160 to 168°C and preferably in the range of 164 to 166°C.
- component B) has a Charpy Notched Impact Strength measured according to ISO 179-1eA at 23°C in the range of 1.5 to 7.0 kJ/m 2 , preferably in the range of 2.0 to 5.0 kJ/m 2 and more preferably in the range of 2.5 to 4.0 kJ/m 2 .
- component A) and/or the MFR 2 (230°C, 2.16 kg) determined according to ISO 1133 and/or the tensile modulus measured according to ISO527-2 is/are determined before adding component (B).
- composition of the commercially available recyclates is subject to slight fluctuations.
- the determination of the mechanical properties and/or the MFR of component A) before adding component B) allows to compensate these fluctuations by adding an appropriate amount of component B).
- the present invention also relates to the use of a virgin polypropylene homopolymer; whereby said virgin polypropylene homopolymer has
- the Tensile Modulus of component A) measured according to ISO527-2 is increased by at least 5 % and preferably by 5 to 35 %.
- the component B) has a xylene soluble content (XCS) determined according to ISO 16152, 1ed, 25°C, based on the overall weight of component B) in the range of 0.5 to 4.0 wt.-%, preferably in the range of 1.0 to 3.0 wt.-% and more preferably in the range of 2.0 to 2.5 wt.-%.
- XCS xylene soluble content
- the MFR 2 (230°C, 2.16 kg) determined according to ISO 1133 of component B) is in the range of 15 to 35 g/10 min and preferably in the range of 22 to 28 g/10 min.
- component B) has a C2-content in the range of 0 to 2.0 wt.-% and preferably of 0 to 1.0 wt.-%;
- component B) has a tensile modulus measured according to ISO527-2 in the range of 1000 to 2000 MPa, preferably in the range of 1500 to 1950 MPa and more preferably in the range of 1700 to 1900 MPa.
- component B) has a melt peak temperature measured according to ISO 11357 in the range of 160 to 168°C and preferably in the range of 164 to 166°C.
- component B) has a Charpy Notched Impact Strength measured according to ISO 179-1eA at 23°C in the range of 1.5 to 7.0 kJ/m 2 , preferably in the range of 2.0 to 5.0 kJ/m 2 and more preferably in the range of 2.5 to 4.0 kJ/m 2 .
- the present invention also relates to an article comprising the polymer composition according to the present invention. It is preferred that the article comprises at least 95 wt.-% based on its overall weight of the polymer composition according to the present invention.
- the article is selected from the group consisting of consumer goods or houseware, preferably caps, closures and packaging containers, more preferably thin wall packaging containers.
- MFR was measured according to ISO 1133 at a load of 2.16 kg, at 230°C for polypropylene and MFR was measured according to ISO 1133 at a load of 2.16 kg at 190°C for polyethylene.
- the melting temperature was determined with a TA Instrument Q2000 differential scanning calorimetry (DSC) on 5 to 7 mg samples. DSC is run according to ISO 11357 / part 3 / method C2 in a heat / cool /heat cycle with a scan rate of 10°C/min in the temperature range of -30 to +225°C. Crystallization temperature (T c ) is determined from the cooling step, while melting temperature (T m ) and melting enthalpy (H m ) are determined from the second heating step. For calculating the melting enthalpy 50°C is used as lower integration limit. Melting and crystallization temperatures were taken as the peaks of endotherms and exotherms.
- DSC differential scanning calorimetry
- the measurements were conducted after 96 h conditioning time (at 23°C at 50 % relative humidity) of the test specimen.
- Charpy Notched impact strength was determined (after 96 hours of conditioning at 23°C and 50 % relative humidity) according to ISO 179 1eA at 23°C using 80x10x4 mm 3 test bars injection moulded in line with EN ISO 1873-2.
- the xylene soluble (XS) fraction as defined and described in the present invention is determined in line with ISO 16152 as follows: 2.0 g of the polymer were dissolved in 250 ml p-xylene at 135 °C under agitation. After 30 minutes, the solution was allowed to cool for 15 minutes at ambient temperature and then allowed to settle for 30 minutes at 25 +/- 0.5 °C. The solution was filtered with filter paper into two 100 ml flasks. The solution from the first 100 ml vessel was evaporated in nitrogen flow and the residue dried under vacuum at 90 °C until constant weight is reached.
- Density of the materials was measured according to ISO 1183-1.
- NMR nuclear-magnetic resonance
- Standard single-pulse excitation was employed utilising the NOE and bi-level WALTZ 16 decoupling scheme ⁇ zhou07, busico07 ⁇ .
- a total of 6144 (6k) transients respectively 16384 (16k) for extended measurements were acquired per spectra. All chemical shifts are internally referenced to the methyl signal of the isotactic pentad mmmm at 21.85 ppm.
- the tacticity distribution was quantified through integration of the methyl region between 23.6 and 19.7 ppm correcting for any sites not related to the stereo sequences of interest ⁇ busico01, busico97 ⁇ .
- the pentad tacticity distribution was determined through direct separate integration of each methyl signal from a given steric pentad followed by normalisation to the sum of methyl signals from all steric pentads.
- mmmm mmmm / mmmm + mmmr + rmmr + mmrr + xmrx + mrmr + rrrr + mrrr + mrrm
- Calibration standards were prepared by blending iPP and HDPE to create a calibration curve.
- the thickness of the films of the calibration standards were 300 ⁇ m.
- quantitative IR spectra were recorded in the solid-state using a Bruker Vertex 70 FTIR spectrometer. Spectra were recorded on 25x25 mm square films of 50-100 ⁇ m thickness prepared by compression moulding at 190°C and 4 to 6 mPa.
- Standard transmission FTIR spectroscopy was employed using a spectral range of 4000 to 400 cm -1 , an aperture of 6 mm, a spectral resolution of 2 cm -1 , 16 background scans, 16 spectrum scans, an interferogram zero filling factor of 32 and Norton Beer strong apodisation.
- the absorption of the band at 1167 cm -1 in iPP was measured and the iPP content was quantified according to a calibration curve (absorption/thickness in cm versus iPP content in wt.-%).
- the absorption of the band at 1601 cm -1 (PS) and 3300 cm -1 (PA6) were measured and the PS- and PA6 content quantified according to the calibration curve (absorption/thickness in cm versus PS and PA content in wt.-%).
- the content of ethylene was obtained by subtracting the content of iPP, PS and PA6 from 100. The analysis was performed as double determination.
- Ash content Ash residue ⁇ 56 / 44 ⁇ WCO 2 ⁇ Wcb
- Ash residue is the wt.-% measured at 900°C in the first step conducted under nitrogen.
- the ash content is estimated to be the same as the talc content for the investigated recyclates.
- Paper and wood is determined by conventional laboratory methods including milling, floatation, microscopy and Thermogravimetric Analysis (TGA).
- the amount of metals is determined by x ray fluorescence (XRF).
- the amount of limonene is determined by solid phase microextraction (HS-SPME-GC-MS).
- the amount of total fatty acids is determined by solid phase microextraction (HS-SPME-GC-MS).
- Purpolen PP is a recycled polymer mixture comprising polyethylene and polypropylene obtained from mtm plastics GmbH, Niedergebra, Germany. content of component a1) determined by FTIR content of of component a2) determined by FTIR Purpolen 1 90.1 wt.-% 8.0 wt.-% Purpolen 2 87.4 wt.-% 10.5 wt.-%
- Purpolen 1 and 2 each individually add up with PS and PA 6 (content also determined by FTIR) to 100 wt.-%.
- the catalyst used in the polymerization process for manufacturing component B) as used in inventive examples IE1 to IE6 and Comparative Example 1 was prepared as follows.
- Polymerization was performed in a Borstar pilot plant, comprising a prepolymerization reactor, a loop reactor and a gas phase reactor.
- the polymerization conditions are also indicated in Table 1.
- the polymer was stabilized with 0.1 wt% of Irganox B 215 (a 1:2 mixture by weight of Pentaerythrityl-tetrakis(3-(3',5'-di-tert. butyl-4-hydroxyphenyl)-propionate, CAS No. 6683-19-8 and Tris (2,4-di-t-butylphenyl) phosphite, CAS No.
- Parameter unit Component B Prepolymerisation temperature [°C] 20 pressure [bar] 55 Al/donor ratio [mol/mol] 20 Al/Ti ratio [mol/mol] 120 residence time [h] 0.3 Loop temperature [°C] 85 pressure [bar] 55 residence time [h] 0.4 C2/C3 ratio [mol/kmol ] 1.51 H2/C3 ratio [mol/kmol ] 0.19 C2 [wt-%] 0.5 XCS [wt.-%] 2.2 MFR [g/10min] 6 Split [wt.-%] 55 GPR1 temperature [°C] 95 pressure [bar] 24 residence time [h] 1.6 C2/C3 ratio [mol/kmol ] 0.02 H2/C3 ratio [mol/kmol ] 20 C2 [wt-%] 0.5 XCS [wt.-%] 2.3 MFR [g/10min] 6 Split [wt.-%] 45 Table 2: Properties of the homopolypropylene "Component B".
- White MB is a titanium-based masterbatch.
- AO1 is Irganox 1010 FF, commercially available from BASF SE.
- AO2 is Irgafos 168 FF, commercially available from BASF SE.
- the polymer compositions according to the inventive examples (IE1 to IE6) and the comparative examples (CE1 and CE2) were prepared on a Coperion ZSK 25 co-rotating twin-screw extruder equipped with a mixing screw configuration with an LID ratio of 25. A melt temperature of 170 to 225°C was used during mixing, solidifying the melt strands in a water bath followed by strand pelletization.
- Table 3 Composition and properties of the polymer compositions.
- the polymer compositions according to inventive examples IE1 to IE6 show a higher stiffness, expressed by the Tensile Modulus, than the polymer composition according to comparative example CE2.
- the Charpy Notch Impact Strength and the Tensile Strain at Break of the polymer compositions according to the inventive examples is on an acceptable level.
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Claims (15)
- Composition de polymère comprenant au moins les composants suivantsA) 20 à 75 % en poids, sur la base du poids total de la composition de polymère, d'un mélange de polymères comprenanta1) un polypropylène ;a2) un polyéthylène ;dans laquelle le rapport pondéral de a1) par rapport à a2) est de 3:7 à 12:1 ; et dans laquelle le mélange de polymères A) est un matériau recyclé comprenant de 0,1 à 100 ppm de limonène, sur la base du poids total du composant A), tel que déterminé par microextraction en phase solide (HS-SPME-GC-MS) ;B) 25 à 80 % en poids, sur la base du poids total de la composition de polymère, d'un homopolymère de polypropylène vierge ; moyennant quoi ledit homopolymère de polypropylène vierge présenteà condition que les proportions pondérales des composants A) et B) totalisent 100 % en poids.• un MFR2 (230 °C, 2,16 kg) déterminé selon l'ISO 1133 dans la plage de 10 à 40 g/10 min ;• un contenu soluble dans le xylène (XCS) déterminé selon l'ISO 16152, 1ed, 25 °C, sur la base du poids total du composant B), dans la plage de 0,1 à 5,0 % en poids ; et• une température de pic de fusion mesurée selon l'ISO 11357 dans la plage de 150 à 170 °C ;
- Composition de polymère selon la revendication 1, caractérisée en ce que,le composant B) présente un contenu soluble dans le xylène (XCS) déterminé selon l'ISO 16152, 1ed, 25 °C, sur la base du poids total du composant B), dans la plage de 0,5 à 4,0 % en poids, de préférence dans la plage de 1,0 à 3,0 % en poids et de manière davantage préférée dans la plage de 2,0 à 2,5 % en poids ; et/oule MFR2 (230 °C, 2,16 kg) déterminé selon l'ISO 1133 du composant B) est dans la plage de 15 à 35 g/10 min et de préférence dans la plage de 22 à 28 g/10 min ; et/oule composant B) présente une teneur en C2 dans la plage de 0 à 2,0 % en poids et de préférence de 0,1 à 1,0 % en poids, de manière davantage préférée inférieure à 0,6 % en poids, sur la base du poids total du composant B) ; et/oule composant B) présente un module de traction mesuré selon l'ISO527-2 dans la plage de 1000 à 2000 MPa, de préférence dans la plage de 1500 à 1950 MPa et de manière davantage préférée dans la plage de 1700 à 1900 MPa ; et/oule composant B) présente une température de pic de fusion mesurée selon l'ISO 11357 dans la plage de 160 à 168 °C et de préférence dans la plage de 164 à 166 °C ; et/oule composant B) présente une résistance aux chocs avec entaille Charpy mesurée selon l'ISO 179-1eA à 23 °C dans la plage de 1,5 à 7,0 kJ/m2, de préférence dans la plage de 2,0 à 5,0 kJ/m2 et de manière davantage préférée dans la plage de 2,5 à 4,0 kJ/m2.
- Composition de polymère selon la revendication 1 ou 2, caractérisée en ce que,le composant A) comprend 80,0 à 99,9 % en poids, de préférence 90,0 à 99,0 % en poids et de manière davantage préférée 94,0 à 98,0, sur la base du poids total du composant A), de polypropylène a1) et de polyéthylène a2) ; et/oule composant A) comprend moins de 5 % en poids, de préférence moins de 3 % en poids et de manière davantage préférée de 0,01 à 2 % en poids, sur la base du poids total du composant A), de polymères thermoplastiques différents de a1) et de a2), de préférence moins de 4,0 % en poids de PA 6 et moins de 5 % en poids de polystyrène, de manière davantage préférée le composant A) comprend 0,5 à 3 % en poids de polystyrène ; et/oule composant A) comprend moins de 5 % en poids, de préférence moins de 4 % en poids et de manière davantage préférée de 0,01 à 3 % en poids, sur la base du poids total du composant A), de talc ; et/oule composant A) comprend moins de 4 % en poids, de préférence moins de 3 % en poids et de manière davantage préférée de 0,01 à 2 % en poids, sur la base du poids total du composant A), de craie ; et/oule composant A) comprend moins de 1 % en poids, de préférence moins de 0,5 % en poids et de manière davantage préférée de 0,01 à 1 % en poids, sur la base du poids total du composant A), de papier ; et/oule composant A) comprend moins de 1 % en poids, de préférence moins de 0,5 % en poids et de manière davantage préférée de 0,01 à 1 % en poids, sur la base du poids total du composant A), de bois ; et/oule composant A) comprend moins de 1 % en poids, de préférence moins de 0,5 % en poids et de manière davantage préférée de 0,01 à 1 % en poids, sur la base du poids total du composant A), de métal ; et/oule composant A) comprend(i) de 1 ppm à 100 ppm, de manière davantage préférée de 1 ppm à 50 ppm, de manière encore plus préférée de 2 ppm à 50 ppm, de manière préférée entre toutes de 3 ppm à 35 ppm, sur la base du poids total du composant A), de limonène, tel que déterminé par microextraction en phase solide (HS-SPME-GC-MS) ; ou(ii) de 0,10 ppm à moins de 1 ppm, de manière davantage préférée de 0,10 à 0,85 ppm, de manière préférée entre toutes de 0,10 à 0,60 ppm, sur la base du poids total du composant A), de limonène, tel que déterminé par microextraction en phase solide (HS-SPME-GC-MS) ; et/oule composant A) comprend 200 ppm ou moins, de préférence de 1 à 200 ppm, sur la base du poids total du composant A), d'acides gras ; et/oule composant A) est un matériau recyclé, qui est récupéré à partir de déchets de matières plastiques dérivés de déchets post-consommation et/ou post-industriels ; et/oule MFR2 (230 °C, 2,16 kg) déterminé selon l'ISO 1133 du composant A) est dans la plage de 16 à 50 g/10 min et de préférence dans la plage de 18 à 22 g/10 min ; et/oula résistance aux chocs avec entaille Charpy mesurée selon l'ISO 179-1eA à 23 °C du composant A) est supérieure à 3,0 kJ/m2, de préférence dans la plage de 4,0 à 7,0 kJ/m2 et de manière davantage préférée dans la plage de 5,0 à 6,0 kJ/m2 ; et/oule module de traction mesuré selon l'ISO527-2 du composant A) est dans la plage de 800 à 1500 MPa et de préférence dans la plage de 1100 à 1400 MPa.
- Composition de polymère selon l'une des revendications précédentes, caractérisée en ce que la composition de polymère présenteun MFR2 (230 °C, 2,16 kg) déterminé selon l'ISO 1133 dans la plage de 1 à 50 g/10 min, de préférence dans la plage de 1,5 à 35 g/10 min, de manière davantage préférée dans la plage de 15 à 30 g/10 min et de manière préférée entre toutes dans la plage de 16 à 22 g/10 min ; et/ouun module de traction mesuré selon l'ISO527-2 dans la plage de 1000 à 1800 MPa et de préférence dans la plage de 1400 à 1750 MPa ; et/ouune résistance aux chocs avec entaille Charpy mesurée selon l'ISO 179-1eA à 23 °C supérieure à 2,0 kJ/m2, de préférence dans la plage de 2,5 à 15,0 kJ/m2 et de manière davantage préférée dans la plage de 2,5 à 5,0 kJ/m2 ; et/ouun module de traction mesuré selon l'ISO527-2, de préférence au moins 5 % plus élevé, de manière davantage préférée de 5 à 35 % plus élevé que celui de la même composition de polymère sans composant B).
- Composition de polymère selon l'une des revendications précédentes, caractérisée en ce que,la teneur en composant A) dans la composition de polymère est dans la plage de 20 à 40 % en poids, de préférence dans la plage de 22 à 30 % en poids ou dans la plagede 45 à 55 % en poids sur la base du poids total de la composition de polymère ; et/oula teneur en composant B) dans la composition de polymère est dans la plage de 60 à 80 % en poids et de préférence dans la plage de 70 à 78 % en poids ou dans la plage de 45 à 55 % en poids sur la base du poids total de la composition de polymère ; et/oula teneur en polypropylène a1) dans le composant A) est dans la plage de 75 à 95 % en poids et de préférence dans la plage de 83 à 93 % en poids sur la base du poids total du composant A), de manière davantage préférée, le composant a1) comprend plus de 95 % en poids, de manière encore plus préférée de 96 à 99,9 % en poids d'un polypropylène isotactique et, de manière préférée entre toutes, consiste en un polypropylène isotactique ; et/oula teneur en polyéthylène a2) dans le composant A) est dans la plage de 5 à 25 % en poids et de préférence dans la plage de 7 à 17 % en poids sur la base du poids total du composant A).
- Composition de polymère selon l'une des revendications précédentes, caractérisée en ce que la composition de polymère comprend au moins un additif, de préférence sélectionné dans le groupe consistant en les agents glissants, les stabilisants UV, les pigments, les antioxydants, les supports d'additif, les agents de nucléation et les mélanges de celui-ci, moyennant quoi ces additifs sont de préférence présents de 0 à 5 % en poids et de manière davantage préférée de 0,1 à 4 % en poids sur la base du poids total de la composition de polymère.
- Composition de polymère selon l'une des revendications précédentes, caractérisée en ce que la composition de polymère comprend au moins les composants suivantsA) 20 à 35 % en poids, de préférence 20 à 30 % en poids, sur la base du poids total de la composition de polymère, d'un mélange de polymères comprenanta1) un polypropylène ;a2) un polyéthylène ;dans laquelle le rapport pondéral de a1) par rapport à a2) est de 3:7 à 12:1, de préférence de 1:1 à 12:1, de manière davantage préférée de 2:1 à 11:1, de manière encore plus préférée de 6:1 à 11:1, tel que 8:1 à 11:1, encore mieux de 7:1 à 10:1, et de manière préférée entre toutes de 8:1 à 9,5:1 ; et dans laquelle le mélange de polymères A) est un matériau recyclé comprenant de 0,1 à 100 ppm de limonène, sur la base du poids total du composant A), tel que déterminé par microextraction en phase solide (HS-SPME-GC-MS) ;B) 65 à 80 % en poids, de préférence 70 à 80 % en poids, sur la base du poids total de la composition de polymère, d'un homopolymère de polypropylène vierge ; moyennant quoi ledit homopolymère de polypropylène vierge présenteà condition que les proportions pondérales des composants A) et B) totalisent 100 % en poids.• un MFR2 (230 °C, 2,16 kg) déterminé selon l'ISO 1133 dans la plage de et de préférence dans la plage de 15 à 35 g/10 min et de préférence dans la plage de 22 à 28 g/10 min ;• un contenu soluble dans le xylène (XCS) déterminé selon l'ISO 16152, 1ed, 25 °C, sur la base du poids total du composant B), dans la plage de 0,1 à 3,0 % en poids et de préférence dans la plage de 2,0 à 2,5 % en poids ;• une température de pic de fusion mesurée selon l'ISO 11357 dans la plage de 150 à 170 °C ;
- Procédé de fabrication d'une composition de polymère selon l'une des revendications 1 à 7, comprenant les étapes suivantes :i)°la fourniture d'un mélange de polymères A) comprenant a1) un polypropylène et a2) un polyéthylène à un rapport pondéral de a1) par rapport à a2) de 3:7 à 12:1 en une quantité de 20 à 75 % en poids sur la base du poids total de la composition de polymère, dans lequel le mélange de polymères A) est un matériau recyclé comprenant de 0,1 à 100 ppm de limonène, sur la base du poids total du composant A), tel que déterminé par microextraction en phase solide (HS-SPME-GC-MS) ;ii)°la fourniture d'un homopolymère de polypropylène vierge en une quantité de 25 à 80 % en poids sur la base du poids total de la composition de polymère ; moyennant quoi ledit homopolymère de polypropylène vierge présente• un MFR2 (230 °C, 2,16 kg) déterminé selon l'ISO 1133 dans la plage de 10 à 40 g/10 min ;• un contenu soluble dans le xylène (XCS) déterminé selon l'ISO 16152, 1ed, 25 °C, sur la base du poids total du composant B), dans la plage de 0,1 à 5,0 % en poids ; et• une température de pic de fusion mesurée selon l'ISO 11357 dans la plage de 150 à 170 °C ;iii) la fusion et le mélange des composants A) et B) pour obtenir la composition de polymère ; etiv) optionnellement, le refroidissement de la composition de polymère obtenue dans l'étape iii) et/ou la granulation de la composition de polymère.
- Procédé selon la revendication 8, caractérisé en ce que,le composant B) présente un contenu soluble dans le xylène (XCS) déterminé selon l'ISO 16152, 1ed, 25 °C, sur la base du poids total du composant B), dans la plage de 0,5 à 4,0 % en poids, de préférence dans la plage de 1,0 à 3,0 % en poids et de manière davantage préférée dans la plage de 2,0 à 2,5 % en poids ; et/oule MFR2 (230 °C, 2,16 kg) déterminé selon l'ISO 1133 du composant B) est dans la plage de 15 à 35 g/10 min et de préférence dans la plage de 22 à 28 g/10 min ; et/oule composant B) présente une teneur en C2 dans la plage de 0 à 2,0 % en poids et de préférence de 0,1 à 1,0 % en poids ; et/oule composant B) présente un module de traction mesuré selon l'ISO527-2 dans la plage de 1000 à 2000 MPa, de préférence dans la plage de 1500 à 1950 MPa et de manière davantage préférée dans la plage de 1700 à 1900 MPa ; et/oule composant B) présente une température de pic de fusion mesurée selon l'ISO 11357 dans la plage de 160 à 168 °C et de préférence dans la plage de 164 à 166 °C ;le composant B) présente une résistance aux chocs avec entaille Charpy mesurée selon l'ISO 179-1eA à 23 °C dans la plage de 1,5 à 7,0 kJ/m2, de préférence dans la plage de 2,0 à 5,0 kJ/m2 et de manière davantage préférée dans la plage de 2,5 à 4,0 kJ/m2.
- Procédé selon la revendication 8 ou 9, caractérisé en ce que la composition chimique du composant A) et/ou le MFR2 (230 °C, 2,16 kg) déterminé selon l'ISO 1133 et/ou le module de traction mesuré selon l'ISO527-2 est/sont déterminé(s) avant l'ajout du composant (B).
- Utilisation d'un homopolymère de polypropylène vierge ; moyennant quoi ledit homopolymère de polypropylène vierge présente• un MFR2 (230 °C, 2,16 kg) déterminé selon l'ISO 1133 dans la plage de 10 à 40 g/10 min ;• un contenu soluble dans le xylène (XCS) déterminé selon l'ISO 16152, 1ed, 25 °C, sur la base du poids total du composant B), dans la plage de 0,1 à 5,0 % en poids ; et• une température de pic de fusion mesurée selon l'ISO 11357 dans la plage de 150 à 170 °C ;pour augmenterle module de traction mesuré selon l'ISO527-2 ; et/oud'un mélange de polymères A) comprenant a1) un polypropylène et a2) un polyéthylène à un rapport pondéral de a1) par rapport à a2) de 3:7 à 12:1, dans laquelle le mélange de polymères A) est un matériau recyclé comprenant de 0,1 à 100 ppm de limonène, sur la base du poids total du composant A), tel que déterminé par microextraction en phase solide (HS-SPME-GC-MS) ;moyennant quoi l'homopolymère de polypropylène vierge est présent en une quantité de 25 à 80 % en poids sur la base du poids total des composants A) et B).
- Utilisation selon la revendication 11, caractérisée en ce que le module de traction du composant A), mesuré selon l'ISO527-2, est augmenté d'au moins 5 % et de préférence de 5 à 35 %.
- Utilisation selon la revendication 11 ou 12, caractérisé en ce que,le composant B) présente un contenu soluble dans le xylène (XCS) déterminé selon l'ISO 16152, 1ed, 25 °C, sur la base du poids total du composant B), dans la plage de 0,5 à 4,0 % en poids, de préférence dans la plage de 1,0 à 3,0 % en poids et de manière davantage préférée dans la plage de 2,0 à 2,5 % en poids ; et/oule MFR2 (230 °C, 2,16 kg) déterminé selon l'ISO 1133 du composant B) est dans la plage de 15 à 35 g/10 min et de préférence dans la plage de 22 à 28 g/10 min ; et/oule composant B) présente une teneur en C2 dans la plage de 0 à 2,0 % en poids et de préférence de 0 à 1,0 % en poids ; et/oule composant B) présente un module de traction mesuré selon l'ISO527-2 dans la plage de 1000 à 2000 MPa, de préférence dans la plage de 1500 à 1950 MPa et de manière davantage préférée dans la plage de 1700 à 1900 MPa ; et/oule composant B) présente une température de pic de fusion mesurée selon l'ISO 11357 dans la plage de 160 à 168 °C et de préférence dans la plage de 164 à 166 °C ; et/oule composant B) présente une résistance aux chocs avec entaille Charpy mesurée selon l'ISO 179-1eA à 23 °C dans la plage de 1,5 à 7,0 kJ/m2, de préférence dans la plage de 2,0 à 5,0 kJ/m2 et de manière davantage préférée dans la plage de 2,5 à 4,0 kJ/m2.
- Article comprenant la composition de polymère selon l'une des revendications 1 à 7.
- Article selon la revendication 14, sélectionné dans le groupe consistant en les biens de consommation ou les articles ménagers, de préférence les bouchons, les fermetures et les récipients d'emballage.
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EP19192201 | 2019-08-19 | ||
PCT/EP2020/071845 WO2021032460A1 (fr) | 2019-08-19 | 2020-08-04 | Mélanges de polypropylène – polyéthylène présentant des propriétés améliorées |
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EP4017918B1 true EP4017918B1 (fr) | 2024-07-24 |
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US (1) | US20220356330A1 (fr) |
EP (1) | EP4017918B1 (fr) |
KR (1) | KR20220047832A (fr) |
CN (1) | CN114245813A (fr) |
BR (1) | BR112022002922A2 (fr) |
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EP3830140A1 (fr) | 2018-08-02 | 2021-06-09 | Borealis AG | Procédé de polymérisation de l'éthylène dans un procédé de polymérisation en plusieurs étapes |
WO2020064313A1 (fr) | 2018-09-26 | 2020-04-02 | Borealis Ag | Copolymère statistique de propylène destiné à être utilisé dans des applications de film |
SG11202106418WA (en) | 2018-12-20 | 2021-07-29 | Borealis Ag | Biaxially oriented polypropylene film with improved breakdown strength |
US11834529B2 (en) | 2019-07-04 | 2023-12-05 | Borealis Ag | Long-chain branched propylene polymer composition |
EP3916047B1 (fr) * | 2020-05-29 | 2022-09-14 | Borealis AG | Composition de recyclage à brillant élevé amélioré |
EP4166611A1 (fr) * | 2021-10-12 | 2023-04-19 | Borealis AG | Composition de recyclage à brillant élevé amélioré |
EP4194502A1 (fr) * | 2021-12-13 | 2023-06-14 | Borealis AG | Composition de polyoléfine comprenant un homopolymère de polypropylène et un matériau plastique recyclé |
WO2023202994A1 (fr) | 2022-04-19 | 2023-10-26 | Borealis Ag | Composition polyoléfine comprenant des polymères de polypropylène hétérophasique et des matériaux plastiques recyclés |
GB202212888D0 (en) * | 2022-09-05 | 2022-10-19 | Father Alterin Ltd | Thermoplastic resins and recycling thereof |
US20240209197A1 (en) | 2022-12-23 | 2024-06-27 | Lummus Novolen Technology Gmbh | Polymer blends comprising recycled polymers with enhanced properties |
EP4389784A1 (fr) | 2022-12-23 | 2024-06-26 | Lummus Novolen Technology Gmbh | Nouveaux mélanges de polymères comprenant des polymères recyclés ayant des propriétés améliorées |
EP4389810A1 (fr) | 2022-12-23 | 2024-06-26 | Lummus Novolen Technology Gmbh | Mélanges de polymères comprenant des polymères recyclés ayant des propriétés améliorées |
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ITMI20130557A1 (it) * | 2013-04-09 | 2014-10-10 | Piaggio & C Spa | Miscela poliolefinica migliorata |
CN108148281B (zh) * | 2016-12-05 | 2022-05-06 | 合肥杰事杰新材料股份有限公司 | 一种用于汽车内外饰的低气味再生聚丙烯复合材料及其制备方法 |
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- 2020-08-04 EP EP20753318.3A patent/EP4017918B1/fr active Active
- 2020-08-04 CN CN202080058007.2A patent/CN114245813A/zh active Pending
- 2020-08-04 CA CA3151512A patent/CA3151512A1/fr active Pending
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BR112022002922A2 (pt) | 2022-05-10 |
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KR20220047832A (ko) | 2022-04-19 |
EP4017918A1 (fr) | 2022-06-29 |
US20220356330A1 (en) | 2022-11-10 |
CN114245813A (zh) | 2022-03-25 |
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